Rockwool FirePro Softseal Linear Joint Seal

Within almost all Construction projects it is essential to ensure fire stopping techniques are used within linear joint wall cavities and voids to prevent the spread of fire and smoke throughout a buildings infrastructure. The Softseal Linear Joint Seal has been specifically manufactured to accommodate structural movements while also achieving excellent fire and acoustical performance properties to walls and floors.

Product Information:

  • The SoftSeal Linear Joint Seal has a density of 80kg/m3
  • Coated on one side
  • Acoustical performance of 40dB to EN10140
  • Fire resistance of up to 4 hours.

*Always Refer Back To The Manufactures Specification Document

Download Specification

Part of the ROCKWOOL FIREPRO® range, FIREPRO® SoftSeal System incorporates a product specifically designed to accommodate movement within buildings in linear joint seals.


• Acoustically absorbent.
• CE Marked.
• Easy to handle and install.
• Both vertical and horizontal joint applications.
• Tested for durability to current EU guidelines.
• Supplied pre-coated.

Fire performance’

ROCKWOOL FIREPRO® SoftSeal Linear Joint Seal has been tested to the dedicated fire resistance standard for linear joint seals BS EN1366-4 and shown to provide up to 4 hours fire performance (E240 & EI80).


As part of the testing to BS EN 1366-4, FIREPRO® SoftSeal was assessed for its movement capabilities, prior to conducting the fire test. The product was tested to accommodate movement (expansion and contraction) of +/-25%.

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